Climate Action Tracker

An independent science-based assessment tracking all countries‘ emission reduction pledges and their implementation. CAT assessments are regarded as the thermometer of international climate action ambition.

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Thermometer shows the global-mean temperature increase above pre-industrial by 2100, with an uncertainty range originating from carbon-cycle and climate modelling.

Independent Scientific Analysis

The Climate Action Tracker (CAT) is an independent scientific analysis that measures government climate action against the globally agreed aim of holding warming well below 2°C, and pursuing efforts to limit warming to 1.5°C. It is produced by three research organisations: Climate Analytics, Ecofys and NewClimate Institute.

The Climate Action Tracker tracks climate pledges and policies of 32 countries, covering around 80% of global emissions, including all the biggest emitters and a representative sample of smaller emitters. The analysis focuses on:

Government climate action pledged to the UNFCCC (and INDCs, other commitments)

The policies a government has actually implemented to meet its commitments

Whether a government is doing its “fair share” compared with others

Comparison to emission reduction potential based on a literature review

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What can we say about the climate pledges that countries have submitted so far? The Climate Action Tracker, produced by four research orgsanisations in Europe, has rated most of the INDCs that have come in so far as 'medium'. This means that if all governments adopted this notion of how much they should do, warming would probably exceed 2°C.

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